Cutting Customer Acquisition Cost by 47%: A B2B SaaS Paid Search Case Study

Cutting Customer Acquisition Cost by 47%: A B2B SaaS Paid Search Case Study

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  C AS EST U D Y Cutting Customer Acquisition Cost by 47% A Paid Search Case Study for a B2B SaaS Platform How a full-funnel account restructure turned wasted ad spend into predictable, trackable pipeline Prepared by Meridian Growth | Paid Search for B2B SaaS 01 / 10
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  C L IE N T SN A PS H O T Where paid search stood before the rebuild INDUSTRY B2B SaaS — project management software MARKET US & EU mid-market teams, $50–500 monthly ACV STARTING POINT Broad-match keywords, no negative lists, CAC climbing every quarter GOAL Cut CAC while scaling qualified demo bookings The bigger picture Flowtrack's paid search account had grown organically for three years — new campaigns bolted on, broad-match keywords left unchecked, and no link between ad spend and closed revenue. CAC had crept up for four straight quarters even as the team increased budget to compensate. The brief: rebuild the account around relevance and attribution, then prove the impact in cost per qualified demo — not just clicks. 02 / 10
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  T H EC HA L L EN G E Four gaps were quietly inflating cost per acquisition 43% of clicks came from irrelevant broad-match queries with no negative keyword coverage. Generic landing pages converted at 1.2% — about half the account's target rate. Conversions weren't tied back to keywords or campaigns, so budget kept funding what looked cheap, not what worked. Spend was split evenly across 14 campaigns regardless of which ones actually performed. 03 / 10
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  T H EPA I D S EA R C H S T R AT E G Y A five-part rebuild focused on relevance and attribution Account audit & restructure Rebuilt the account into tightly themed ad groups and removed 60+ wasted broad-match terms. Negative keyword & search-term hygiene Weekly search-term mining fed a growing negative keyword list across every campaign. Landing page CRO Built dedicated, conversion-focused landing pages for the top five campaigns and A/B tested continuously. Conversion tracking & attribution Connected offline demo-to-close data back to keyword-level performance. Bid strategy & budget reallocation Shifted budget weekly toward the campaigns proving out on cost per qualified demo. 04 / 10
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  I M PL E M EN TAT I O N T I M EL I NE From audit to optimization in eight weeks, then ongoing Weeks 1–2 · Account audit & restructure Rebuilt the account into tightly themed ad groups and removed 60+ wasted broad-match terms. Weeks 3–4 · Negative keyword & search-term hygiene Weekly search-term mining fed a growing negative keyword list across every campaign. Weeks 5–6 · Landing page CRO Built dedicated, conversion-focused landing pages for the top five campaigns and A/B tested continuously. Weeks 7–8 · Conversion tracking & attribution Connected offline demo-to-close data back to keyword-level performance. Ongoing · Bid strategy & budget reallocation Shifted budget weekly toward the campaigns proving out on cost per qualified demo. 05 / 10
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  T H ER ESU LT S Cost per acquisition fell as qualified pipeline grew -47% Reduction in cost per acquisition +82% Growth in qualified demo bookings -61% Wasted spend cut from broad- match clicks +2.4 Average Quality Score increase Results reflect Flowtrack's six-month engagement with Meridian Growth — comparable programs across our B2B SaaS clients have delivered 30–55% CAC reductions within two quarters. 06 / 10
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  T H ET R EN D L I N E Cost per acquisition, month over month Month 1 Month 2 Month 3 Month 4 Month 5 Month 6 $96 $89 $78 $68 $58 $51 07 / 10
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  B EF OR E VS . AF T ER From scattershot bidding to a coordinated, accountable account BEFORE Broad-match bidding on unqualified terms No negative keyword lists Generic, one-size-fits-all landing pages Monthly reporting, no attribution CAC climbing quarter over quarter AFTER Tightly themed, SKAG-style ad groups Continuously updated negative keyword lists Dedicated, tested landing pages per campaign Weekly reporting tied to closed revenue CAC down 47% and still falling 08 / 10
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  K EY TAK EAWAYS What made the biggest difference to cost and pipeline Negative keywords compound savings Every wasted search term removed keeps paying off, week after week. Quality Score rewards relevance Tighter ad groups and better landing pages lowered cost per click across the board. Attribution turns optimization into math Once demos were tied to keywords, budget decisions stopped being guesswork. Reallocating budget beats increasing it Shifting spend toward proven campaigns outperformed simply spending more. 09 / 10
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  Ready to loweryour CAC? Meridian Growth has rebuilt paid search accounts for B2B SaaS companies across categories — turning scattershot bidding into predictable, attributable pipeline, backed by weekly optimization. Book a paid search audit See brand-by-brand case results Explore PPC management services Meridian Growth — Paid Search for B2B SaaS 10 / 10